The Gyeonggi-do Marine and Fisheries Resources Research Institute released 10,000 spotted mandarin fish fingerlings into 10 rivers and streams in the province on June 23rd and 25th, including the Imjin River in Yeoncheon, the Namhan River in Yeoju, and the Gapyeong Stream in Gapyeong, in order to recover marine fish resources and preserve biodiversity. All fingerlings are healthy specimens that passed fish disease screening, artificially fertilized from healthy parent fish during the institute's own feed acclimation research process.